EP 3713201 A4 20201230 - ANTENNA SWITCHING CIRCUIT, ANTENNA SWITCHING METHOD AND ELECTRONIC DEVICE
Title (en)
ANTENNA SWITCHING CIRCUIT, ANTENNA SWITCHING METHOD AND ELECTRONIC DEVICE
Title (de)
ANTENNENSCHALTKREIS, ANTENNENSCHALTVERFAHREN UND ELEKTRONISCHE VORRICHTUNG
Title (fr)
CIRCUIT DE COMMUTATION D'ANTENNE, PROCÉDÉ DE COMMUTATION D'ANTENNE ET DISPOSITIF ÉLECTRONIQUE
Publication
Application
Priority
- CN 201711489603 A 20171229
- CN 201721928068 U 20171229
- CN 2018118510 W 20181130
Abstract (en)
[origin: EP3713201A1] Disclosed in the embodiments of the present application are an antenna switching circuit, an antenna switching method and an electronic device. The antenna switching circuit comprises a detection device, a controller, a first antenna, a second antenna, a first switch and a radio frequency transceiver. The detection device is used to detect a change in an input impedance of the first antenna and a change in an input impedance of the second antenna; the controller is used to compare the change in the input impedance of the first antenna with the change in the input impedance of the second antenna; the first switch is used to turn on a first radio frequency circuit and turn off a second radio frequency circuit when the change in the input impedance of the first antenna is less than the change in the input impedance of the second antenna, the first radio frequency circuit comprising a circuit between the first antenna and the radio frequency transceiver, the second radio frequency circuit comprising a circuit between the second antenna and the radio frequency transceiver. The embodiments of the present application can improve antenna performance.
IPC 8 full level
H04B 1/04 (2006.01); H01Q 1/24 (2006.01); H04B 1/18 (2006.01); H04B 7/06 (2006.01); H04B 7/08 (2006.01); H04M 1/72454 (2021.01)
CPC (source: EP US)
H01Q 1/243 (2013.01 - EP); H01Q 1/44 (2013.01 - EP); H01Q 5/335 (2013.01 - US); H01Q 5/35 (2013.01 - EP); H01Q 9/42 (2013.01 - EP); H01Q 21/28 (2013.01 - EP); H04B 1/0064 (2013.01 - US); H04B 1/0458 (2013.01 - EP); H04B 1/0483 (2013.01 - US); H04B 1/1615 (2013.01 - US); H04B 1/18 (2013.01 - EP); H04B 7/0602 (2013.01 - US); H04B 7/0608 (2013.01 - EP); H04B 7/0808 (2013.01 - EP); H04M 1/72454 (2021.01 - EP)
Citation (search report)
- [XI] US 2003228891 A1 20031211 - KOBAYASHI NAOKI [JP], et al
- [XI] US 2007093282 A1 20070426 - CHANG HENRY [US], et al
- [A] US 2013241797 A1 20130919 - KUO JERRY W [US]
- See also references of WO 2019128620A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3713201 A1 20200923; EP 3713201 A4 20201230; US 2020321990 A1 20201008; WO 2019128620 A1 20190704
DOCDB simple family (application)
EP 18896469 A 20181130; CN 2018118510 W 20181130; US 202016906367 A 20200619